A practical strategy for securing automated traffic control systems

摘要

Traffic intersections are plenteous in this world we live in, while the efforts to secure them are not. With a little knowledge in the Department of Transportation one could easily take control of an intersection for a period of time without any interference from authorities. In this paper a proposal to encrypt such SDLC and broadband messages shall be described. DES and MD5 prove to be strong solutions for the 0.5 ms window of encryption time available with the SDLC messaging structure used. For added authentication purposes, RSA is an ideal candidate for the NTCIP configuration.